Answer:
b . chemical weathering
Explanation:
Chemical weathering is not affected the flow of groundwater through an aquifer but affect by the porosity and permeability. The rate of groundwater flow is controlled by two properties of the rock which are porosity and permeability. Porosity is the percentage of void space in a rock while on the other hand, Permeability is the quality of being permeable means able to be penetrated or passed through by a liquid or gas.
 
        
             
        
        
        
Answer:
D. Meiosis forms four cells all with different genetic material 
Explanation:
They are haploid cells and each cell only had one set of chromosomes. Meiosis results in variation. 
 
        
             
        
        
        
It can be classified in the phylum chordata.
Phylum : chordata 
Sub-phylum: Vertebrata
Division: Gnathostomata
Superclass: pisces (respiration occurs typically by gills)
 
        
                    
             
        
        
        
Ff= slow
MM=strong
Ii= intelligent